Enable conference registration

Change-Id: I5e973513d78c63a48e62ff1aa3a5d9a1621f4a4d
diff --git a/static/main.js b/static/main.js
index a07eb52..277b4ef 100644
--- a/static/main.js
+++ b/static/main.js
@@ -2,7 +2,7 @@
 (function () {
     'use strict';
     window.addEventListener('load', function () {
-        update_total_costs();
+        update_total_due();
         // Fetch all the forms we want to apply custom Bootstrap validation styles to
         var forms = document.getElementsByClassName('needs-validation');
         // Loop over them and prevent submission
@@ -18,7 +18,7 @@
     }, false);
 })();
 
-function update_total_costs() {
+function update_total_due() {
     var costs = 0;
 
 
@@ -31,7 +31,7 @@
             costs += parseInt($("#conference_dinner_price").text(), 10);
         }
     }
-    $("#total_costs").val(costs.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2}));
+    $("#total_due").val(costs.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2}));
 }
 
 function update_paper_id_field() {